Diferentes temperaturas de água de irrigação na cultura da soja

Abstract

Soy is a plant of the genus Glycine; its grain has had its consumption expanded in the last three decades. The objective of this work was to determine the vegetative growth of soybean under the influence of different soil water temperatures. The experiment was carried out in the greenhouse of the Nursery sector of the Federal University of Mato Grosso – Sinop Campus, from April 8, 2022 to July 22, 2022. The experimental design was in randomized blocks, with five replications (in pots) studying Different irrigation water temperatures were used, namely: 10Cº, 20Cº, 30Cº, 40Cº, 40Cº, 50Cº and 60Cº, 5 replicates of each pot were used. Plant height (AP), leaf area (AF), root dry mass (MSR), shoot dry mass (MSPA) were evaluated. Soybeans sown in succession to crops (10, 20, 30 and 50) show higher yields. Obtaining an optimal yield in a given environment depends on maximizing the genetic potential of a given cultivar. This involves having enough time for vegetative growth so that the predominant photoperiod does not reduce productivity, and avoiding water stress Crops (40 and 60) in the crop succession system did not have negative effects on soybean productivity.